/Engine/Source/Runtime/InteractiveToolsFramework/Public/BaseBehaviors/BehaviorTargetInterfaces.h
Functions required to apply standard "Click-Drag" state machines to a target object. See UClickDragBehavior for an example of this kind of state machine.
class IClickDragBehaviorTarget : public [IModifierToggleBehaviorTarget](API\Runtime\InteractiveToolsFramework\BaseBehaviors\IModifierToggleBehaviorTarget)